EP1101845A2 - Palier pour un rotor de filage dans une machine de filature à bout ouvert - Google Patents

Palier pour un rotor de filage dans une machine de filature à bout ouvert Download PDF

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Publication number
EP1101845A2
EP1101845A2 EP00119719A EP00119719A EP1101845A2 EP 1101845 A2 EP1101845 A2 EP 1101845A2 EP 00119719 A EP00119719 A EP 00119719A EP 00119719 A EP00119719 A EP 00119719A EP 1101845 A2 EP1101845 A2 EP 1101845A2
Authority
EP
European Patent Office
Prior art keywords
bearing
open
rotor shaft
spinning device
end spinning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00119719A
Other languages
German (de)
English (en)
Other versions
EP1101845A3 (fr
EP1101845B1 (fr
Inventor
Heinz-Georg Wassenhoven
Claus-Dieter Landolt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
W Schlafhorst AG and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Publication of EP1101845A2 publication Critical patent/EP1101845A2/fr
Publication of EP1101845A3 publication Critical patent/EP1101845A3/fr
Application granted granted Critical
Publication of EP1101845B1 publication Critical patent/EP1101845B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D01H4/12—Rotor bearings; Arrangements for driving or stopping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/041—Passive magnetic bearings with permanent magnets on one part attracting the other part
    • F16C32/0417—Passive magnetic bearings with permanent magnets on one part attracting the other part for axial load mainly
    • F16C32/0419—Passive magnetic bearings with permanent magnets on one part attracting the other part for axial load mainly with facing radial projections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2340/00—Apparatus for treating textiles
    • F16C2340/18—Apparatus for spinning or twisting

Definitions

  • the invention relates to an open-end spinning device with the Features of the preamble of claim 1.
  • spinning units In connection with open-end rotor spinning machines, spinning units are known in which the spinning rotor rotating at high speed is supported with its rotor shaft in the bearing gap of a support disk bearing arrangement and fixed via an axial bearing arranged at the end.
  • the axes of the two pairs of support disks are set in such a way that an axial thrust is exerted on the rotor shaft, which holds the rotor shaft in contact with the mechanical axial bearing arranged at the end.
  • a disadvantage of this type of spinning rotor bearing is however, that due to the setting of the support washers between the treads of the support disks and the rotor shaft increased friction occurs, which over time leads to warming of the running surfaces of the support disks. Through this Frictional heat is not just the tread of the Support discs considerably stressed, but to overcome this friction also requires additional energy.
  • the known mechanical thrust bearings are also, also correct lubrication, a not insignificant Subject to wear.
  • Some of these variants relate to non-positive, other positive locking of the rotating magnetic bearing elements, which can be easily detached if necessary.
  • these known magnetic bearing devices a correct axial fixation of the rotor shaft on the support disk bearing arrangement is possible and it is also ensured that the spinning rotor can be easily installed and removed if necessary, but it has been shown that the principle advantageous, if necessary easily detachable, non-positive attachment of the magnetic bearing component on the rotor shaft is still room for improvement.
  • the problem with such magnetic bearing devices is in particular the attachment of the co-rotating ones Magnetic bearing elements on the rotor shaft, because of the high quality of the balancing quality of this connection due to the high speed of the spinning rotor.
  • An open-end rotor spinning device with one permanent magnetic thrust bearing is also due to the AT-PS 270 459 known.
  • a disadvantage of such a magnetic bearing arrangement is, however, that the ring lugs arranged on the rotor shaft have a significantly larger diameter than that Rotor shaft itself. Because the diameter is significantly larger Ring approaches the installation and removal of the spinning rotor, in particular its front assembly, significantly complicate or prevented, this known magnetic bearing arrangement could not enforce in practice.
  • DE 30 47 606 A1 discloses a bearing for a spindle of a textile machine rotating at a relatively high speed.
  • the spindle is supported in the radial direction via a three-point bearing arrangement similar to a support disk bearing and is secured in the axial direction by a magnetic bearing.
  • the end of the spindle has a bearing area with two ferromagnetic ring projections.
  • a sleeve made of a non-magnetic material is fixed to the bearing housing, into which a ring-shaped permanent magnet element, which is enclosed by lateral pole disks, is embedded.
  • the ferromagnetic ring extensions of the spindle shaft face the pole disks of the permanent magnet element fixed in the static bearing element.
  • Bearings for spinning rotors are also known from DE 197 29 191 A1 or the subsequently published DE 199 10 279.1, in which the rotor with its rotor shaft is supported in the bearing gusset of a support disk bearing without axial thrust and is axially fixed by a magnetic axial bearing.
  • the axial bearing has a stationary magnetic bearing component that can be fixed on the bearing housing and a rotatably arranged magnetic bearing component that is formed by ferromagnetic ring extensions in the area of the rotor shaft end.
  • the ring projections are formed by punctures in the rotor shaft, which are then poured out with a non-magnetic filler material. In this way it is to be avoided that the treads of the support disks can be damaged by the sharp-edged ring attachments when installing or removing the spinning rotor.
  • the inventive design of the rotor shaft in particular the area of the rotatable magnetic bearing component, has the advantage that the weight fraction of the Rotor shaft, which protrudes above the bearing points, can be minimized and, on the other hand, at the same time ensures that the relatively sensitive running surfaces of the support disks are not damaged when installing and removing the spinning rotor.
  • the rotor shaft advantageously has a length of ⁇ 100 mm, preferably a length of 93.5 mm.
  • the ring approaches in the area of their Outer edges through radii (Claim 4) or chamfers (Claim 5) are defused.
  • Such training is based on the one hand simple way to ensure that the treads of the support washers are not damaged when installing and removing the spinning rotor, on the other hand, the relatively small radii or chamfers lead to no significant impairment of the magnetic flux of the Thrust bearings.
  • the radii arranged on the ring lugs are for example between 0.1 and 0.5 mm, preferably 0.3 mm large.
  • the radii of the ring projections are provided. These radii each point a size between 0.2 and 1.5 mm, preferably 0.7 mm.
  • a mechanical emergency running bearing is additionally arranged within the magnetic axial bearing.
  • This emergency run bearing consists at least partially of a highly wear-resistant ceramic material, for example a ceramic pin, which is embedded in a bore in the bearing bush of the axial bearing.
  • the ceramic pin corresponds to a spaced contact surface, for example the end face of the rotor shaft.
  • the open-end spinning unit shown in Figure 1 carries total reference number 1.
  • the spinning unit has a rotor housing 2 in which the spinning cup of a spinning rotor 3 rotates at high speed.
  • the spinning rotor 3 is supported with its rotor shaft 4 in the bearing gusset of a support disk bearing 5 and is supported by a machine-long one Tangential belt 6, which is started by a pressure roller 7, acted upon.
  • the axial fixation of the rotor shaft 4 takes place via a permanent magnetic axial bearing 18, which is shown in detail in FIGS. 2 and 3.
  • Rotor housing 2 is pivotable during operation stored cover element 8, in one (not closer )) channel plate is embedded with a seal 9, locked.
  • the rotor housing 2 is also a corresponding one Suction line 10 connected to a vacuum source 11, the generates the spinning vacuum necessary in the rotor housing 2.
  • a channel plate adapter 12 is arranged in the cover element 8 and has the thread draw-off nozzle 13 and the mouth region of the fiber guide channel 14.
  • a thread take-off tube 15 connects to the thread take-off nozzle 13.
  • an opening roller housing 17 is fixed on the cover element 8, which is rotatably supported to a limited extent about a pivot axis 16.
  • the cover element 8 furthermore has bearing brackets 19, 20 on the back for mounting an opening roller 21 or a sliver feed cylinder 22.
  • the opening roller 21 is driven in the region of its whorl 23 by a circumferential, machine-long tangential belt 24, while the (not shown) drive of the sliver feed cylinder 22 is preferably carried out via a worm gear arrangement which is connected to a machine-long drive shaft 25.
  • Figure 2 shows the thrust bearing according to the invention in detail, wherein the axial bearing 18 is shown in section. From Support disc bearing 5 is only one in FIG Support disc 54 indicated with its shaft 55. On corresponding pair of support disks is spaced nearby the spinning cup of the spinning rotor 3 arranged as that Figure 1 can be seen.
  • the magnetic thrust bearing 18 consists essentially of one stationary magnetic bearing component 27, which in one Bearing housing 26 is held axially adjustable.
  • the active ones Stock components in the form of permanent magnet rings 41 with pole rings 45 arranged on both sides are inside a two-part bearing bush 28, consisting of a Inner sleeve 28 'and an outer sleeve 28' 'arranged.
  • the Bearing bush parts 28 'and 28' ' are threaded 30 screwed.
  • the active bearing components 41 and 45 the are guided within the inner sleeve 28 ', against one on the outer sleeve 28 '' arranged ring extension 29 pressed. On the one hand, this results in a stable bearing construction, on the other hand unproblematic dismantling of the bearing, for example individual parts arranged within the warehouse exchange.
  • the bearing bush 28 is within a bore 26 'of the Bearing housing 26 axially slidably mounted. This allows the stationary magnetic bearing component 27 axially adjusted exactly so be that the optimal spinning position of the Rotor cup results.
  • a pin 32 of a bolt 33 inserted into a bore 34 engages in a longitudinal groove 31 of the bearing bush 28.
  • a so-called setting gauge 36 can be used the axial adjustment of the static bearing component 27 can be carried out in a simple manner.
  • the setting gauge 36 is inserted into a bore 38 of the bearing housing 26.
  • the axial position of the static bearing component 27 can be fixed by means of a locking screw 53, which braces the bearing bush 28 against the bearing housing 26.
  • the rotor shaft 4 can through an opening in the rotor housing 2, through the gusset of the support disc bearing 5 and a Bore 37 of the ring shoulder 29 with its rotatable Magnetic bearing component 44 in the stationary Magnetic bearing component 27 are introduced, while the rest, mainly serving the radial bearing of the spinning rotor 3 Shaft part 4 'remains outside the axial bearing 18.
  • the magnetic bearing component 44 of the rotor shaft 4 consists essentially of recesses 47, which form web-like ring projections 46 between them.
  • the rotor shaft 4 is made of steel with ferromagnetic properties.
  • the ring projections 46 are aligned with the pole disks 45 arranged on both sides of the permanent magnet rings 41.
  • the pole disks 45 preferably have the same width as the ring projections 46.
  • the width of the ring extensions 46 is approximately 1 mm
  • the width of the recesses 47 is approximately 3 mm.
  • a support device 39 is arranged in the area of the axial bearing 18, which has, for example, a ceramic pin 42 which is embedded in a bore in the extension 40, the bearing bush 28, preferably in the outer bush 28 ′′.
  • the ceramic pin 42 has a distance a during "normal" spinning operation with respect to the rotor shaft 4 rotating at high speed, which ensures that no friction occurs between the two components.
  • the support device 39 prevents it from Spinning interruptions, especially during rotor cleaning, in which the pressure roller 7 with the tangential belt 6 from Rotor shaft 4 is lifted and the spinning rotor 3 by one on one Piecing carriage arranged cleaning element is applied, due to the radial acting on the rotor shaft 4 Force component for pivoting the rotor shaft 4 in Clockwise and as a result to contact the Magnetic bearing components of the thrust bearing 18 can come.
  • This emergency running bearing 52 consists, for example, as indicated in FIG. 2, of a ceramic pin 56, which is fixed in a bore in the bearing bush 28 and, in an emergency, corresponds to the end face 50 'of the rotor shaft 4.
  • the ceramic pin 56 can also be fastened in a bore in the rotor shaft 4 and then corresponds to the bottom surface 57 of the bearing bush 28.
  • FIG. 3 shows a rotor shaft 4 in an overall view.
  • the end of the rotor shaft 4 is equipped with the magnetic bearing component 44 according to the invention.
  • the diameter D of the rotor shaft 4 is between 8 and 9 mm, preferably 8.25 mm.
  • the length L of the rotor shaft 4 is less than 100 mm, preferably it is 93.5 mm.
  • the magnetic bearing component 44 consists of the is shown in Figure 4 on a larger scale Ring extensions 46 and recesses 47 in between.
  • the outer diameter of the ring extensions 46 corresponds to this preferably about the outer diameter D of the rotor shaft 4, while the diameter of the punctures 47 clearly below lies and is, for example, about 5 mm.
  • the ring projections 46 are defused in the region of their outer circumference in that they have a radius 48 on both sides, as shown in FIG. 4, or, as indicated in FIG. 5, a chamfer 43.
  • the transitions between the base surfaces 49 of the recesses 47 and the side surfaces 50 of the ring extensions 46 are rounded.
  • These radii marked 51 are preferably somewhat larger than the radii 48 in the area of the outer circumference of the ring extensions 46.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
EP00119719A 1999-11-20 2000-09-09 Palier pour un rotor de filage dans une machine de filature à bout ouvert Expired - Lifetime EP1101845B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19955829A DE19955829A1 (de) 1999-11-20 1999-11-20 Offenend-Spinnvorrichtung
DE19955829 1999-11-20

Publications (3)

Publication Number Publication Date
EP1101845A2 true EP1101845A2 (fr) 2001-05-23
EP1101845A3 EP1101845A3 (fr) 2002-07-10
EP1101845B1 EP1101845B1 (fr) 2006-06-21

Family

ID=7929697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119719A Expired - Lifetime EP1101845B1 (fr) 1999-11-20 2000-09-09 Palier pour un rotor de filage dans une machine de filature à bout ouvert

Country Status (4)

Country Link
US (2) US6298649B1 (fr)
EP (1) EP1101845B1 (fr)
CZ (1) CZ300645B6 (fr)
DE (2) DE19955829A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101736452A (zh) * 2008-11-12 2010-06-16 欧瑞康纺织有限及两合公司 止推轴承
US20100148600A1 (en) * 2008-12-17 2010-06-17 Martin Bauer Fluid dynamic bearing system
US8212444B2 (en) 2007-12-11 2012-07-03 Minebea Co., Ltd. Magnetic axial bearing and a spindle motor having this kind of magnetic axial bearing
EP3045752A4 (fr) * 2013-09-13 2016-09-07 Green Refrigeration Equipment Engineering Res Ct Of Zhuhai Gree Co Ltd Palier de suspension magnétique et compresseur centrifuge

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005046849A1 (de) * 2005-09-29 2007-04-05 Volkswagen Ag Lageranordnung für eine elektrische Maschine, insbesondere für ein elektrisches Getriebe eines Kraftfahrzeuges
JP2008196548A (ja) * 2007-02-09 2008-08-28 Ihi Corp 磁気軸受装置
DE102007059467B4 (de) * 2007-12-11 2010-06-02 Minebea Co., Ltd. Magnetisches Axiallager
CN113174666B (zh) * 2021-04-14 2022-12-06 东华大学 具有热隔离作用的高温超导磁悬浮加捻装置
DE102021119614A1 (de) 2021-07-28 2023-02-02 Maschinenfabrik Rieter Ag Axiallager und Polscheibe für ein Axiallager

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5399028A (en) * 1992-09-01 1995-03-21 W. Schlafhorst Ag & Co. Support disk assembly for a bearing of a spinning rotor
DE19729191A1 (de) * 1997-07-09 1999-01-14 Schlafhorst & Co W Offenend-Spinnvorrichtung mit einem Spinnrotor
US5927869A (en) * 1996-12-17 1999-07-27 Hans Stahlecker Step bearing for a shaft of a spinning rotor loaded by an axial force
US5959383A (en) * 1996-12-20 1999-09-28 W. Schlafhorst Ag & Co. Thrust bearing for an open-end spinning rotor

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT270459B (de) 1966-03-01 1969-04-25 Vyzk Ustav Bavlnarsky Vorrichtung zur Lagerung und zum Antrieb der rotierenden Spinnkammer
DE2108590A1 (de) * 1971-02-23 1972-09-07 Siemens Ag Anordnung zur Lagerung einer hochtourig, insbesondere elektromotorisch angetriebenen Welle
DE2206237A1 (de) * 1972-02-10 1973-08-23 Skf Kugellagerfabriken Gmbh Lagerung fuer schnellaufende wellen oder achsen
DE2248695A1 (de) * 1972-10-04 1974-04-11 Skf Kugellagerfabriken Gmbh Lagerung fuer mit hoher drehzahl rotierende wellen
DE2514734C2 (de) 1975-04-04 1982-10-28 Stahlecker, Fritz, 7347 Bad Überkingen Lagerung für einen Offenend-Spinnrotor
DE2634070C3 (de) * 1976-07-29 1981-06-11 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Lagerung für den Schaft eines Spinnrotors
DE7708087U1 (de) * 1977-03-16 1977-06-30 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Axialfuehrung fuer den schaft eines auf stuetzrollen gelagerten spinnrotors o.dgl.
DE3047606C2 (de) 1979-12-26 1985-07-11 Ichikawa Iron Works Co. Ltd., Kiryu, Gumma Lageranordnung für einen länglichen, um seine Längsachse drehbaren Drehkörper
DE4022562A1 (de) * 1990-07-16 1992-01-23 Schlafhorst & Co W Lagerung fuer einen offenend-spinnrotor
JP3961032B2 (ja) 1993-12-13 2007-08-15 シーメンス アクチエンゲゼルシヤフト 回転子軸の磁気軸受装置
DE4436831C2 (de) * 1993-12-13 1997-09-11 Siemens Ag Magnetische Lagerung einer Rotorwelle unter Verwendung von Hoch-T¶c¶-Supraleitermaterial
EP0718423B1 (fr) 1994-12-21 1999-07-21 W. SCHLAFHORST AG & CO. Palier pour un rotor de filage à bout libre
US5622040A (en) 1994-12-21 1997-04-22 W. Schlafhorst Ag & Co. Bearing for an open-end spinning rotor
DE19642471B4 (de) * 1996-10-15 2005-05-19 Saurer Gmbh & Co. Kg Offenend-Spinnvorrichtung mit einem einzelmotorisch angetriebenen Spinnrotor
DE19822587B4 (de) * 1998-05-20 2010-03-11 Oerlikon Textile Gmbh & Co. Kg Axiallager einer Offenend-Spinnvorrichtung
DE19910279A1 (de) 1999-03-09 2000-09-14 Schlafhorst & Co W Lagerung eines Spinnrotors einer Offenend-Spinnvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5399028A (en) * 1992-09-01 1995-03-21 W. Schlafhorst Ag & Co. Support disk assembly for a bearing of a spinning rotor
US5927869A (en) * 1996-12-17 1999-07-27 Hans Stahlecker Step bearing for a shaft of a spinning rotor loaded by an axial force
US5959383A (en) * 1996-12-20 1999-09-28 W. Schlafhorst Ag & Co. Thrust bearing for an open-end spinning rotor
DE19729191A1 (de) * 1997-07-09 1999-01-14 Schlafhorst & Co W Offenend-Spinnvorrichtung mit einem Spinnrotor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8212444B2 (en) 2007-12-11 2012-07-03 Minebea Co., Ltd. Magnetic axial bearing and a spindle motor having this kind of magnetic axial bearing
CN101736452A (zh) * 2008-11-12 2010-06-16 欧瑞康纺织有限及两合公司 止推轴承
CN101736452B (zh) * 2008-11-12 2013-01-02 欧瑞康纺织有限及两合公司 止推轴承
US20100148600A1 (en) * 2008-12-17 2010-06-17 Martin Bauer Fluid dynamic bearing system
EP3045752A4 (fr) * 2013-09-13 2016-09-07 Green Refrigeration Equipment Engineering Res Ct Of Zhuhai Gree Co Ltd Palier de suspension magnétique et compresseur centrifuge

Also Published As

Publication number Publication date
CZ300645B6 (cs) 2009-07-08
EP1101845A3 (fr) 2002-07-10
DE50013035D1 (de) 2006-08-03
CZ20004276A3 (cs) 2001-07-11
US6298649B1 (en) 2001-10-09
USRE42383E1 (en) 2011-05-24
DE19955829A1 (de) 2001-05-23
EP1101845B1 (fr) 2006-06-21

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